CVE-2026-33936: python-ecdsa: Denial of Service via improper DER length validation in crafted private keys

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Status

Not Exploited

Patch Tuesday

2026-Mar

Released

2026-03-29

EPSS Score

0.05% (percentile: 14.5%)

Affected Products (1)

Other

• 19941-17084

Revision History

• 2026-03-29: Information published.